Zebvance Posted January 12, 2014 Share Posted January 12, 2014 So i want to replace my coil, distributor, plugs and wires. I want to get the best I can get. I have a 1988 renix 4.0 jeep comanche. What are some performance upgrade coils and distributors I can get? Does MSD make anything for the renix years? Link to comment Share on other sites More sharing options...
Eagle Posted January 12, 2014 Share Posted January 12, 2014 The Renix system is already a high-output system. You can waste a lot of money on aftermarket stuff that isn't in any way an upgrade. What makes you think you need to "upgrade" anything? Link to comment Share on other sites More sharing options...
Zebvance Posted January 12, 2014 Author Share Posted January 12, 2014 Just looking to put the best of the best on my mj.SO what would you recommend just OE replacement? Link to comment Share on other sites More sharing options...
Remy B. Posted January 12, 2014 Share Posted January 12, 2014 they have good spark plug cables, and coils, I know they have AMC distributors for V8 and 6L but I think it is for the 4.2L engine I don't think it will be compatible with renix system as a drop if I'm not wrong you will need to lockup the distributor, I know is possible but have not tried that on a MSD dis, it comes with instructions to do so if I remember right, I did install one on a 360 AMC, to replace the OEM distributor because the timing was jumping back and forward about 2* because it was so old, ( weak springs, radial play, to much gear backlash and who knows what else ) after that the timing was dead on and the engine was responding as what I tune it for. if you don't have issues with your Dis, and you have not really a lot of SCR and fuel going to your cylinders, you will not see difference by putting more coil in your truck, cables do smooth out and engine, if you have old cables, as for the coil I don't see why you need to, but I don't know what setup you have in your engine so you may feel some difference, if you feel good about it why not, an overkill never hurt. Link to comment Share on other sites More sharing options...
Zebvance Posted January 12, 2014 Author Share Posted January 12, 2014 well It misses when Its cold and first start it up. Ignition is basically the only thing I haven't replaced yet. as far as upgrades to the engine, I have done the 703 injector swap and paces setter header. Along with 2 3/4 exhaust, High flow cat and magnaflow muffler.And if you want to call a snorkle a cold air intake that too... Link to comment Share on other sites More sharing options...
Remy B. Posted January 12, 2014 Share Posted January 12, 2014 that are bold on things that your stock ignition system will handle without hesitation, when you increase your SCR as well as your DCR and automatically you shut compensate with more fuel because your engine will suck more air then you may see or feel a difference, but that is if you are running 11:1 SCR with increased DCR and running crazy RPM's, if you don't have that, there is really no need for a performance coil. I will say, by own experience the MSD cables are will spend money, and I have the same input from others that have change to MSD cables. as for the coil, the only thing that will get hurt a little is your pocket, but it will not be for much, if you really want to go for it go with one that have the heat dissipation fins, if you go to the MSD page you can see what MSD recommends according the setup of your car, you will see it is a overkill but it don't hurt. just as a suggestion, up to you, when your exhaust pipe system rust off later on, go down to 2.5" exhaust. Link to comment Share on other sites More sharing options...
Zebvance Posted January 13, 2014 Author Share Posted January 13, 2014 Ok so I think Ill just do a really nice set of wires. Maybe 9mm? And just go with a Oe replacement for the coil and distributor. What about spark plugs? And I need some suggestions on brand for the coil and distributor. Link to comment Share on other sites More sharing options...
cruiser54 Posted January 13, 2014 Share Posted January 13, 2014 Ok so I think Ill just do a really nice set of wires. Maybe 9mm? And just go with a Oe replacement for the coil and distributor. What about spark plugs? And I need some suggestions on brand for the coil and distributor. Napa Premium cap and rotor with brass terminals, NGK 7252 plugs, Taylor Thundervolt 8.2mm plug wires. I wouldn't replace the dizzy. Too many crappy ones out there. Link to comment Share on other sites More sharing options...
Zebvance Posted January 13, 2014 Author Share Posted January 13, 2014 We'll the dizzy is leaking oil where it goes Into the block so I was just going to replace the whole thing Link to comment Share on other sites More sharing options...
cruiser54 Posted January 13, 2014 Share Posted January 13, 2014 We'll the dizzy is leaking oil where it goes Into the block so I was just going to replace the whole thing Well, be aware that alot of the replacements have a longer "tang" on the bottom of them and don't seat fully. Good time to index your dizzy also. The 10th write-up in my link. Link to comment Share on other sites More sharing options...
Eagle Posted January 13, 2014 Share Posted January 13, 2014 Ok so I think Ill just do a really nice set of wires. Maybe 9mm? And just go with a Oe replacement for the coil and distributor. What about spark plugs? And I need some suggestions on brand for the coil and distributor. Start with a good set of plug wires. For spark plugs I like NGK, with Champion truck plugs being second choice. Don't waste money on platinum plugs -- not needed. Link to comment Share on other sites More sharing options...
Zebvance Posted January 13, 2014 Author Share Posted January 13, 2014 We'll the dizzy is leaking oil where it goes Into the block so I was just going to replace the whole thing Well, be aware that alot of the replacements have a longer "tang" on the bottom of them and don't seat fully. Good time to index your dizzy also. The 10th write-up in my link. Cruiser, sorry for my ignorance, what does indexing the dizzy do? Also what do you mean longer "tang"? Link to comment Share on other sites More sharing options...
cruiser54 Posted January 13, 2014 Share Posted January 13, 2014 From the factory the dizzys were indexed wrong for the most part. About the 10th post in my link. They run better when they're indexed properly. The tang is on the end of the dizzy shaft and is part of it. Goes into the oil pump drive. Not unusual on reman dizzys to get one that the shaft is too long, not allowing the dizzy to seat all the way down. Link to comment Share on other sites More sharing options...
carnuck Posted January 18, 2014 Share Posted January 18, 2014 It could be just a leaky oring on the dist. Link to comment Share on other sites More sharing options...
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